The purpose of this study was to examine the ability of two educational leadership university programmes to improve the cognitive agility of their graduates. The research looked to discover whether the aspiring principals exited the programmes with an increased ability to employ cognitive agility--the ability to use the multiple thinking skills of systems thinking, reflecting, and reframing--when engaged in their professional work and solving problems. Both Masters programmes were in School Leadership, offered through the same university department and following the same core curriculum leading to Level 1 educational leadership certification. The results indicate that of the two programmes studied, the Principal Rapid Orientation and Preparation in Educational Leadership (PROPEL) programme, designed to prepare leaders for turnaround schools, produced more cognitively agile graduates than the traditional Master's programme. The mediating variables of participants' years of experience and budget responsibility increased the level of cognitive agility of both programme's graduates.